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Kabushiki Kaisha Ricoh

USPTO Granted Patents = 23

Forward Citations = 216

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35 inventors (with patents filed for the assignee):

Shoji Maruyama (2 out of 16 patents)

Wasaburo Ohta (2 out of 36 patents)

Mitsuru Hashimoto (2 out of 73 patents)

4. Toshiyuki Kawanishi (2 out of 27 patents)

5. Ryuichi Kawa (2 out of 2 patents)

6. Keiichi Maruta (2 out of 2 patents)

7. Toyoo Okamoto (2 out of 17 patents)

8. Kenji Kojima (1 out of 61 patents)

9. Takeshi Abe (1 out of 54 patents)

10. Koichi Ejiri (1 out of 27 patents)

11. Mitsuru Kondo (1 out of 9 patents)

12. Tatsuo Tani (1 out of 45 patents)

13. Mamoru Maeda (1 out of 6 patents)

14. Tomio Kubota (1 out of 5 patents)

15. Morisumi Kurose (1 out of 5 patents)

23 patents: Sort by Forward Citations

1. 4677494 - Image reading apparatus (1987-06-30),

2. 4366506 - Picture transfer method and apparatus therefor (1982-12-28),

3. 4345823 - Reproduction lens having a six group six element composition a large (1982-08-24),

4. 4281557 - Means for driving a movable body (1981-08-04),

5. 4268026 - Sheet supply means for a reproducing apparatus (1981-05-19),

6. 4149485 - Apparatus for forming a uniform liquid film on a roller (1979-04-17),

7. 4082902 - Spark-recording type printing method and spark-recording material for (1978-04-04),

8. 4066454 - Electrophotographic light-sensitive material containing (1978-01-03),

9. 4060441 - Method for forming a transparent protective coating on a photograph or (1977-11-29),

10. 4058674 - Graphic information compression method and system (1977-11-15),

11. 4032463 - Liquid developer for use in electrostatic photography and preparation of (1977-06-28),

12. 4015984 - Inorganic photoconductor in glass binds with glass overcoat layer (1977-04-05),

13. 4011353 - Apparatus for forming a uniform liquid film on a roller (1977-03-08),

14. 4010446 - Character pattern line thickness regularizing device (1977-03-01),

15. 3987060 - Dicyanomethylene-indeno thiophene and derivatives (1976-10-19),

Kabushiki Kaisha Ricoh, commonly known as Ricoh, is a Japanese multinational imaging and electronics company. It provides a wide range of products and services, including printers, copiers, cameras, and IT solutions. Ricoh is known for its environmentally sustainable practices and commitment to innovation in the digital imaging industry.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 16 2025

23 Patents

#1,092 in Tokyo

#2,644 in Japan

#26,801 in the World

Kabushiki Kaisha Ricoh

Forward Citations = 216

35 inventors:

Shoji Maruyama (2 out of 16 patents)

Wasaburo Ohta (2 out of 36 patents)

Mitsuru Hashimoto (2 out of 73 patents)

4. Toshiyuki Kawanishi (2 out of 27 patents)

5. Ryuichi Kawa (2 out of 2 patents)

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